Diff Report
Run #519fe7ae1f6cc: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fe8bb569af: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fe7ae1f6ccRun #519fe8bb569afDiffDiff%
Number of Function Calls54 54 0 0.0%
Incl. Wall Time (microsec)7,944 8,019 75 0.9%
Incl. Wall Time (microsec) per call 147 149 1 0.9%
Excl. Wall Time (microsec)951 952 1 0.1%
Incl. CPU (microsecs)7,128 7,085 -43 -0.6%
Incl. CPU (microsecs) per call 132 131 -1 -0.6%
Excl. CPU (microsec)868 886 18 2.1%
Incl. MemUse (bytes)752,296 752,296 0 0.0%
Incl. MemUse (bytes) per call 13,931 13,931 0 0.0%
Excl. MemUse (bytes)-119,568 -119,568 0 0.0%
Incl. PeakMemUse (bytes)1,107,872 1,107,872 0 0.0%
Incl. PeakMemUse (bytes) per call 20,516 20,516 0 0.0%
Excl. PeakMemUse (bytes)4,584 4,584 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 75 6.1% -43 -8.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 1.3% 18 41.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 75 100.0% -43 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 117 156.0% -11 -25.6% 0 N/A% 0 N/A%
unserialize0 N/A% -41 -54.7% -47 -109.3% 0 N/A% 0 N/A%
explode0 N/A% -2 -2.7% -3 -7.0% 0 N/A% 0 N/A%